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74ACT16240 반도체 회로 부품 판매점

16-Bit Inverting Buffer/Line Driver with 3-STATE Outputs



Fairchild Semiconductor 로고
Fairchild Semiconductor
74ACT16240 데이터시트, 핀배열, 회로
August 1999
Revised May 2005
74ACT16240
16-Bit Inverting Buffer/Line Driver with 3-STATE Outputs
General Description
The ACT16240 contains sixteen inverting buffers with
3-STATE outputs designed to be employed as a memory
and address driver, clock driver, or bus-oriented transmit-
ter/receiver. The device is nibble controlled. Each nibble
has separate 3-STATE control inputs which can be shorted
together for full 16-bit operation.
Features
s Separate control logic for each byte
s 16-bit version of the ACT240
s Outputs source/sink 24 mA
s TTL-compatible inputs
Ordering Code:
Order Number Package Number
Package Description
74ACT16240SSC
MS48A
48-Lead Small Shrink Outline Package (SSOP), JEDEC MO-118, 0.300" Wide
74ACT16240MTD
MTD48
48-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1mm Wide
Device also available in Tape and Reel. Specify by appending suffix letter “X” to the ordering code.
Logic Symbol
Connection Diagram
www.DataSheet4U.com
Pin Descriptions
Pin Names
Description
OEn
I0I15
O0O15
Output Enable Inputs (Active LOW)
Inputs
Outputs
FACT¥ is a trademark of Fairchild Semiconductor Corporation.
© 2005 Fairchild Semiconductor Corporation DS500293
www.fairchildsemi.com


74ACT16240 데이터시트, 핀배열, 회로
Truth Tables
Inputs
OE1
I0–I3
LL
LH
HX
Outputs
O0–O3
H
L
Z
Inputs
OE2
I4–I7
LL
LH
HX
Inputs
OE3
L
L
H
I8–I11
L
H
X
Outputs
O8–O11
H
L
Z
Inputs
OE4
L
L
H
H HIGH Voltage Level
L LOW Voltage Level
X Immaterial
Z High Impedance
I12–I15
L
H
X
Functional Description
The ACT16240 contains sixteen inverting buffers with
3-STATE standard outputs. The device is nibble (4 bits)
controlled with each nibble functioning identically, but inde-
pendently of the other. The control pins may be shorted
together to obtain full 16-bit operation. The 3-STATE out-
puts are controlled by an Output Enable (OEn) input for
each nibble. When OEn is LOW, the outputs are in 2-state
mode. When OEn is HIGH, the outputs are in the high
impedance mode, but this does not interfere with entering
new data into the inputs.
Logic Diagram
Outputs
O4–O7
H
L
Z
Outputs
O12–O15
H
L
Z
www.fairchildsemi.com
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74ACT16240 driver

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